Datasheets
UC1843AL by:

Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20, LCC-20

Part Details for UC1843AL by Unitrode Corporation

Overview of UC1843AL by Unitrode Corporation

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Applications Consumer Electronics Energy and Power Systems Renewable Energy

Part Details for UC1843AL

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UC1843AL Part Data Attributes:

UC1843AL Unitrode Corporation
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UC1843AL Unitrode Corporation Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20, LCC-20
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer UNITRODE CORP
Package Description QCCN, LCC20,.35SQ
Reach Compliance Code unknown
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 25 V
Input Voltage-Min 12 V
Input Voltage-Nom 15 V
JESD-30 Code S-CQCC-N20
JESD-609 Code e0
Number of Functions 1
Number of Terminals 20
Operating Temperature-Max 125 °C
Operating Temperature-Min -55 °C
Output Current-Max 1 A
Output Voltage-Nom 2.5 V
Package Body Material CERAMIC, METAL-SEALED COFIRED
Package Code QCCN
Package Equivalence Code LCC20,.35SQ
Package Shape SQUARE
Package Style CHIP CARRIER
Qualification Status Not Qualified
Supply Current-Max (Isup) 17 mA
Surface Mount YES
Switcher Configuration SINGLE
Switching Frequency-Max 500 kHz
Technology BIPOLAR
Temperature Grade MILITARY
Terminal Finish TIN LEAD
Terminal Form NO LEAD
Terminal Pitch 1.27 mm
Terminal Position QUAD

Alternate Parts for UC1843AL

This table gives cross-reference parts and alternative options found for UC1843AL. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of UC1843AL, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Description Manufacturer Compare
UC3843N Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, 0C to 70C 8-PDIP 0 to 70 Texas Instruments UC1843AL vs UC3843N
UC3842BDG High Performance Current Mode PWM Controller, SOIC-14 NB, 55-TUBE onsemi UC1843AL vs UC3842BDG
UC3843AD8G4 30-V, 1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle 0°C to 70°C 8-SOIC 0 to 70 Texas Instruments UC1843AL vs UC3843AD8G4
UC3845ANG4 30V,1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 50% duty cycle, 0°C to 70°C 8-PDIP 0 to 70 Texas Instruments UC1843AL vs UC3845ANG4
IP2845AD-14 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO14, 0.150 INCH, PLASTIC, SOIC-14 TT Electronics Power and Hybrid / Semelab Limited UC1843AL vs IP2845AD-14
UC3843A-S08-R Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, PDSO8, SOP-8 Unisonic Technologies Co Ltd UC1843AL vs UC3843A-S08-R
UC3843BL-D08-T Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, LEAD FREE, DIP-8 Unisonic Technologies Co Ltd UC1843AL vs UC3843BL-D08-T
5962-8670408PA Current Mode PWM Controller 8-CDIP -55 to 125 Texas Instruments UC1843AL vs 5962-8670408PA
IP3845D-8E3 Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, PDSO8, 0.150 INCH, PLASTIC, SOIC-8 TT Electronics Resistors UC1843AL vs IP3845D-8E3
UC3845DR2 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO14, PLASTIC, SOIC-14 onsemi UC1843AL vs UC3845DR2

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